Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and view other reports go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	1413
interventional	1295
Observational	112
Registry	6

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Drug	745
Drug\|Other	103
Biological	85
Biological\|Drug	51
Drug\|Procedure	36
Drug\|placebo	29
Biological\|Drug\|Other	28
Drug\|Procedure\|Radiation	23
Other	23
Drug\|Other\|Procedure\|Radiation	17
Biological\|Drug\|Other\|Procedure\|Radiation	15
Biological\|Drug\|Procedure\|Radiation	14
Drug\|Other\|Procedure	13
Procedure	13
Biological\|Other	11
Biological\|Drug\|Procedure	9
Biological\|Drug\|Other\|Procedure	8
Biological\|Drug\|Radiation	6
Behavioral	5
Device	5
Device\|Drug\|Procedure	5
Combination Product	4
Device\|Drug	4
Other\|Procedure	4
Behavioral\|Other	3
Biological\|Device\|Drug	3
Drug\|Genetic\|Other	3
Biological\|Other\|Procedure	2
Drug\|Genetic\|Other\|Procedure	2
Drug\|placebo\|Procedure	2
Drug\|Radiation	2
Genetic	2
Behavioral\|Drug	1
Behavioral\|Other\|Procedure	1
Biological\|Combination Product	1
Biological\|Combination Product\|Drug	1
Biological\|Device	1
Biological\|Device\|Drug\|Procedure\|Radiation	1
Biological\|Device\|Drug\|Radiation	1
Biological\|Drug\|Genetic\|Other\|Procedure	1
Biological\|Drug\|placebo	1
Biological\|Genetic\|Other\|Procedure	1
Biological\|placebo	1
Biological\|Procedure	1
Device\|Drug\|Other\|Procedure\|Radiation	1
Device\|Drug\|Procedure\|Radiation	1
Dietary Supplement\|Drug	1
Drug\|Genetic	1
Drug\|Genetic\|Other\|Procedure\|Radiation	1
Drug\|Genetic\|Procedure\|Radiation	1
Drug\|Other\|placebo\|Procedure	1
Drug\|Other\|Radiation	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country	Study_Count
United States	761
China	54
France	45
Germany	36
United States\|Canada	28
NA	26
Spain	20
Japan	18
Canada	17
United Kingdom	16
Italy	15
Korea, Republic of	10
United States\|Australia\|Canada	9
Austria\|Germany	8
United States\|France	8
Australia	5
Israel	5
United States\|Israel	5
Belgium	4
Netherlands	4
Norway	4
Russian Federation	4
United States\|Germany	4
United States\|Germany\|Italy	4
United States\|Italy	4
Brazil	3
Hong Kong	3
United States\|Korea, Republic of	3
Denmark	2
Germany\|Netherlands	2
Iran, Islamic Republic of	2
Japan\|Korea, Republic of\|Taiwan	2
Poland	2
United States\|Australia	2
United States\|Australia\|Canada\|Netherlands\|New Zealand\|Puerto Rico\|Switzerland	2
United States\|Germany\|Spain	2
United States\|Puerto Rico	2
United States\|Spain	2
Argentina\|Belgium\|Canada\|Denmark\|Finland\|France\|Italy\|Netherlands\|Norway\|Sweden	1
Australia\|Brazil\|France\|Israel\|Italy\|Russian Federation\|Spain\|Switzerland\|Turkey	1
Australia\|Canada\|Estonia\|Finland\|Germany\|Greece\|New Zealand\|Norway\|Sweden	1
Australia\|France	1
Australia\|France\|Spain\|United Kingdom	1
Australia\|United States\|Austria\|Belgium\|Bulgaria\|Canada\|Czechia\|Denmark\|Finland\|France\|Germany\|Hungary\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Poland\|Romania\|Russian Federation\|Serbia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
Australia\|United States\|Canada\|Germany\|Israel\|Italy\|New Zealand\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Ukraine	1
Austria\|Belgium\|Canada\|France\|Germany\|Italy\|Norway	1
Austria\|Belgium\|Croatia\|France\|Germany\|Italy\|Netherlands	1
Austria\|Belgium\|Croatia\|France\|Italy\|Netherlands	1
Austria\|Canada\|Finland\|Norway\|Russian Federation\|Sweden	1
Austria\|Czechia\|Germany	1
Austria\|Czechia\|Germany\|Italy\|Poland\|United Kingdom	1
Austria\|Finland\|Germany\|Russian Federation	1
Belarus	1
Belgium\|Bulgaria\|Croatia\|France\|Germany\|Italy\|Lithuania\|Netherlands\|Portugal	1
Belgium\|Denmark\|Estonia\|Finland\|Hong Kong\|Iceland\|Netherlands\|Norway\|Sweden	1
Belgium\|France\|Germany\|Italy\|Spain	1
Belgium\|Germany\|United Kingdom	1
Belgium\|Netherlands	1
Belgium\|Switzerland	1
Bulgaria\|Croatia\|Czechia\|Estonia\|Finland\|France\|Greece\|Hungary\|Italy\|Lithuania\|Norway\|Romania\|Serbia\|Slovakia\|Spain\|Sweden	1
China\|Malaysia\|Russian Federation\|Singapore\|Thailand	1
Czechia\|United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Croatia\|France\|Germany\|Hong Kong\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Poland\|Portugal\|Romania\|Russian Federation\|Serbia\|Singapore\|Spain\|Taiwan\|Ukraine\|United Kingdom	1
Denmark\|Germany\|Netherlands	1
Denmark\|United Kingdom	1
Egypt	1
Finland	1
Finland\|Germany\|Netherlands\|Norway\|Sweden	1
France\|Germany	1
France\|Germany\|Italy	1
France\|Germany\|United Kingdom	1
France\|Switzerland	1
France\|United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Czechia\|Finland\|Germany\|Ireland\|Israel\|Italy\|Korea, Republic of\|Lithuania\|Mexico\|Poland\|Portugal\|Russian Federation\|Spain\|Taiwan\|Turkey\|United Kingdom	1
Germany\|Austria	1
Germany\|Netherlands\|United Kingdom	1
Germany\|Switzerland	1
Hong Kong\|Japan\|Korea, Republic of\|Russian Federation\|Taiwan\|Thailand\|Vietnam	1
Ireland\|Italy\|United Kingdom	1
Israel\|Italy	1
Italy\|Japan\|United States\|Australia\|France\|Greece	1
Italy\|Saudi Arabia\|United Kingdom	1
Italy\|United Kingdom	1
Japan\|Korea, Republic of	1
Portugal\|Germany\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Czechia\|France\|Israel\|Italy\|Japan\|Norway\|Poland\|Spain\|Switzerland\|Taiwan\|Turkey	1
Portugal\|Spain	1
Singapore	1
Spain\|United States\|Australia	1
Sweden	1
Switzerland	1
Thailand	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Greece\|Hungary\|Ireland\|Japan\|Korea, Republic of\|Mexico\|New Zealand\|Norway\|Puerto Rico\|Russian Federation\|South Africa\|Spain\|Taiwan\|United Kingdom	1
United States\|Argentina\|Austria\|Belgium\|Brazil\|Canada\|Czechia\|Finland\|France\|Germany\|Greece\|Hungary\|India\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Norway\|Poland\|Portugal\|Russian Federation\|South Africa\|Spain\|Taiwan	1
United States\|Argentina\|Belgium\|Brazil\|Canada\|Czechia\|Germany\|Greece\|Hong Kong\|Hungary\|Ireland\|Israel\|Italy\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Puerto Rico\|Russian Federation\|Spain\|Taiwan\|Thailand	1
United States\|Argentina\|Korea, Republic of\|Australia\|Austria\|Brazil\|Czechia\|France\|Germany\|Hungary\|Italy\|Poland\|Romania\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Czechia\|Denmark\|France\|Germany\|Italy\|Korea, Republic of\|Russian Federation\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|China\|Czechia\|France\|Germany\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Russian Federation\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|New Zealand\|Poland\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|France\|Germany\|Korea, Republic of\|Poland\|Spain	1
United States\|Australia\|Austria\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Spain\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Russian Federation\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Greece\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Russian Federation\|Spain\|Turkey\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|Croatia\|Czechia\|France\|Germany\|Hong Kong\|Hungary\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Serbia\|Singapore\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|Denmark\|France\|Germany\|Greece\|Italy\|Japan\|Korea, Republic of\|New Zealand\|Poland\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Ireland\|Italy\|Norway\|Poland\|Romania\|Spain\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Poland\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|France\|Germany\|Israel\|Korea, Republic of\|Poland\|Russian Federation\|Spain\|Sweden\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Belgium\|France\|Germany\|Italy\|Korea, Republic of\|Peru\|Spain\|Switzerland\|Turkey\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Greece\|Hungary\|Italy\|Japan\|Korea, Republic of\|Puerto Rico\|Russian Federation\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Russian Federation\|Spain\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Australia\|Canada\|Croatia\|Czechia\|France\|Hungary\|Mexico\|Poland\|Romania\|Russian Federation\|Serbia\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Canada\|Denmark\|Estonia\|Finland\|France\|Germany\|Israel\|New Zealand\|Sweden\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Italy\|Korea, Republic of\|Netherlands\|Portugal\|Spain\|Switzerland\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Italy\|Korea, Republic of\|Spain\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Netherlands\|Switzerland\|United Kingdom	1
United States\|Australia\|Canada\|France\|Italy\|Korea, Republic of\|United Kingdom	1
United States\|Australia\|Canada\|Germany\|Japan	1
United States\|Australia\|Canada\|Ireland\|Italy\|Netherlands\|Spain	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico\|Saudi Arabia	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico\|Switzerland	1
United States\|Australia\|Canada\|Puerto Rico\|Switzerland	1
United States\|Australia\|Finland\|France\|Germany\|Netherlands\|Spain\|United Kingdom	1
United States\|Australia\|Finland\|Italy\|Singapore\|Spain\|Switzerland	1
United States\|Australia\|France	1
United States\|Australia\|France\|Germany	1
United States\|Australia\|France\|Germany\|Italy\|Japan\|Netherlands	1
United States\|Australia\|France\|Germany\|Italy\|Japan\|Romania\|Spain\|United Kingdom	1
United States\|Australia\|France\|Italy\|Spain	1
United States\|Australia\|France\|Poland	1
United States\|Australia\|France\|Spain	1
United States\|Australia\|Germany	1
United States\|Australia\|Germany\|Italy	1
United States\|Australia\|Ireland	1
United States\|Australia\|Singapore	1
United States\|Austria\|Belgium\|Canada\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|Spain\|Sweden\|Switzerland\|Thailand\|United Kingdom	1
United States\|Austria\|Belgium\|Canada\|France\|Germany\|Italy\|Netherlands\|Poland\|Portugal\|Spain\|United Kingdom	1
United States\|Austria\|Belgium\|France\|Germany\|Hungary\|Italy\|Poland\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Belgium	1
United States\|Belgium\|Bulgaria\|Canada\|Czechia\|France\|Germany\|Ireland\|Israel\|Italy\|Netherlands\|Spain	1
United States\|Belgium\|Canada\|Denmark\|France\|Germany\|Hungary\|Italy\|Japan\|Korea, Republic of\|Poland\|Spain\|Sweden\|Ukraine\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Greece\|Netherlands\|Poland\|Serbia\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Poland\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|United Kingdom	1
United States\|Belgium\|Denmark\|France\|Israel\|Italy\|Netherlands\|Spain\|Sweden	1
United States\|Belgium\|France\|Italy\|Netherlands	1
United States\|Brazil\|Canada\|Czechia\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Poland\|Portugal\|Romania\|Serbia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Brazil\|Denmark\|France\|Germany\|Hong Kong\|Italy\|Korea, Republic of\|Puerto Rico\|Taiwan\|United Kingdom	1
United States\|Brazil\|France\|Israel\|Italy\|Netherlands\|Portugal\|Singapore\|Spain\|United Kingdom	1
United States\|Canada\|Denmark\|France\|Germany\|Israel\|Italy\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Canada\|France	1
United States\|Canada\|France\|Germany\|Italy	1
United States\|Canada\|France\|Germany\|Italy\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Canada\|France\|Germany\|Italy\|Spain	1
United States\|Canada\|France\|Italy	1
United States\|Canada\|France\|Italy\|Norway\|Spain\|United Kingdom	1
United States\|Canada\|France\|Italy\|United Kingdom	1
United States\|Canada\|France\|Netherlands\|Spain\|United Kingdom	1
United States\|Canada\|France\|Poland	1
United States\|Canada\|France\|Spain	1
United States\|Canada\|Germany\|Italy\|Poland\|Spain	1
United States\|Canada\|Germany\|Poland\|Switzerland	1
United States\|Canada\|Netherlands	1
United States\|Canada\|New Zealand	1
United States\|Canada\|Puerto Rico	1
United States\|Denmark	1
United States\|Denmark\|Germany	1
United States\|France\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Croatia\|Czechia\|Denmark\|Finland\|Germany\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Norway\|Poland\|Portugal\|Puerto Rico\|Russian Federation\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine	1
United States\|France\|Germany	1
United States\|France\|Germany\|Italy\|Switzerland\|United Kingdom	1
United States\|France\|Germany\|Italy\|United Kingdom	1
United States\|France\|Germany\|Norway	1
United States\|France\|Germany\|Spain	1
United States\|France\|Israel\|Japan\|United Kingdom	1
United States\|France\|Italy\|Netherlands	1
United States\|France\|Italy\|Spain	1
United States\|France\|Italy\|United Kingdom	1
United States\|France\|Korea, Republic of	1
United States\|France\|United Kingdom	1
United States\|Georgia	1
United States\|Germany\|Italy\|Spain	1
United States\|Germany\|Netherlands	1
United States\|Germany\|United Kingdom	1
United States\|India\|Israel	1
United States\|Israel\|Peru	1
United States\|Italy\|Netherlands\|Singapore\|Spain	1
United States\|New Zealand	1
United States\|Puerto Rico\|South Africa	1
United States\|Singapore	1
United States\|Spain\|United Kingdom	1
United States\|Switzerland	1
United States\|United Kingdom	1

Sites per Study

Site_count	Study_Count
1	659
2	86
3	63
4	34
5	46
6	35
7	23
8	23
9	27
10	22
11	23
12	12
13	14
14	9
15	11
16	7
17	11
18	6
19	8
20	8
21	13
22	7
23	3
24	9
25	3
26	5
27	7
28	1
29	3
30	1
32	4
33	3
34	2
35	1
37	1
38	4
40	3
42	1
43	3
44	1
45	2
46	2
47	1
49	1
50	3
52	2
53	2
54	3
55	2
57	1
59	1
60	1
61	3
62	3
65	4
66	2
73	2
76	1
78	2
81	3
82	1
84	1
85	2
87	1
88	1
90	1
92	1
95	1
96	1
97	1
98	1
99	1
108	1
109	1
112	1
118	2
120	1
122	1
124	1
127	1
128	1
131	1
132	1
135	1
139	1
144	1
148	1
149	1
151	1
153	1
169	1
171	1
172	1
176	1
177	1
178	1
179	1
185	1
198	1
201	1
220	2
225	1
234	1
235	1
242	1
244	1
269	1
341	1
447	1

Phase

Phase	Study_Count
Phase 2	452
Phase 1	383
Phase 1/Phase 2	211
Phase 3	128
N/A	71
Phase 2/Phase 3	23
Phase 4	17
Early Phase 1	10

Number of Arms

Number_of_Arms	Count_of_Studies
1	682
2	331
3	79
4	49
5	12
6	16
7	6
9	4
10	2
11	1
12	1
13	1
16	1
NA	110

Number of Updates

Count of Versions	Count of Studies
1	48
2	56
3	64
4	82
5	71
6	62
7	62
8	61
9	59
10	45
11	38
12	55
13	58
14	45
15	41
16	27
17	26
18	33
19	23
20	26
21	19
22	17
23	11
24	18
25	17
26	19
27	10
28	10
29	10
30	13
31	8
32	10
33	8
34	5
35	4
36	4
37	7
38	6
39	4
40	8
41	3
42	3
43	1
44	6
45	4
46	4
47	2
48	2
49	1
50	2
51	4
52	3
53	2
54	1
55	1
59	2
60	1
61	1
62	4
63	1
65	3
66	1
67	3
68	1
70	1
71	3
72	1
73	1
75	1
77	2
78	1
81	2
82	1
83	1
84	2
85	1
86	1
89	1
92	1
93	1
94	2
97	1
98	1
101	1
103	1
106	1
109	2
116	1
118	1
127	2
129	2
133	1
139	1
157	1
162	1
170	1
223	1
232	1
284	1
320	1
347	1
439	1
444	1
556	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	23146	1247	18.561347
Contacts/Locations	10840	1171	9.257045
Recruitment Status	2501	1113	2.247080
Eligibility	2467	867	2.845444
Arms	2451	837	2.928315
Interventions	2451	837	2.928315
Study Design	2173	924	2.351732
Study Description	2119	749	2.829105
Study Identification	2019	785	2.571975
Outcome Measures	1915	789	2.427123
Conditions	1456	537	2.711359
Sponsor/Collaborators	1312	686	1.912536
None (earliest Version on record)	1295	1295	1.000000
Oversight	1111	718	1.547354
More Information	568	161	3.527950
References	505	260	1.942308
Results	228	228	1.000000
IPDSharing	204	153	1.333333
Baseline Characteristics	106	79	1.341772
Results Submission Events	79	79	1.000000
Reported Adverse Events	70	55	1.272727
Documents	54	53	1.018868
Participant Flow	54	46	1.173913

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	6.0	2.0000	2.00000	2.00000	3.00000	18.0000	6.0000	30.0000
1st Qu.	12.5	24.0000	19.00000	30.00000	32.00000	103.0000	215.0000	100.0000
Median	23.0	50.0000	30.00000	47.00000	53.00000	153.0000	364.5000	120.0000
Mean	25.7	118.2714	41.99204	75.72857	86.24887	520.3913	444.4365	187.0588
3rd Qu.	32.0	115.5000	52.00000	80.00000	100.00000	706.5000	515.2500	200.0000
Max.	55.0	2000.0000	302.00000	2000.00000	862.00000	3100.0000	3500.0000	600.0000

Trial Group Type

group_type	Group_Count
Experimental	1772
Active Comparator	196
NA	110
Other	53
Placebo Comparator	31
No Intervention	30
Sham Comparator	1

Intervention Model

intervention_model	Study_Count
Single Group Assignment	793
Parallel Assignment	381
Sequential Assignment	60
NA	45
Factorial Assignment	9
Crossover Assignment	7

Primary Purpose

primary_purpose	Study_Count
Treatment	1192
Supportive Care	39
Prevention	25
Other	10
Diagnostic	8
Health Services Research	7
NA	7
Basic Science	6
Screening	1

Observational Studies

Studies by Country

Country	Study_Count
United States	45
NA	16
France	13
Italy	6
Spain	5
China	4
Israel	3
Brazil	2
Egypt	2
Taiwan	2
United States\|Canada	2
Austria\|Croatia	1
Austria\|Germany	1
Belgium	1
Belgium\|Croatia\|France\|Italy\|North Macedonia\|Slovakia\|Slovenia\|Turkey	1
Denmark	1
Germany	1
Japan	1
Mexico	1
Russian Federation	1
United Kingdom	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico\|Switzerland	1
United States\|Puerto Rico	1

Sites per Study

Site_count	Study_Count
1	79
2	7
3	2
7	3
8	1
12	1
14	1
15	1
17	1
19	1
20	1
32	1
38	1
39	1
40	1
42	1
46	3
66	1
70	1
77	1
144	1
192	1
225	1

Number of Updates

Count of Versions	Count of Studies
1	18
2	13
3	13
4	16
5	12
6	4
7	5
8	2
9	3
10	1
11	1
12	3
13	4
14	1
15	1
16	1
17	1
20	1
21	1
24	1
33	1
38	1
62	1
63	1
64	1
84	1
112	1
122	1
165	1
224	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	1397	94	14.861702
Contacts/Locations	844	69	12.231884
Recruitment Status	127	77	1.649351
Study Description	121	47	2.574468
Study Design	118	64	1.843750
None (earliest Version on record)	112	112	1.000000
Eligibility	103	55	1.872727
Outcome Measures	78	49	1.591837
Study Identification	76	52	1.461539
Sponsor/Collaborators	67	53	1.264151
Groups	58	32	1.812500
Interventions	58	32	1.812500
Oversight	54	49	1.102041
Conditions	45	26	1.730769
References	18	12	1.500000
IPDSharing	4	4	1.000000
Results	4	4	1.000000
Documents	3	3	1.000000
Results Submission Events	3	3	1.000000

Enrollment Metrics

Measure	Observational
Min	1.000
1st Qu	50.000
Median	154.000
Mean	1496.892
3rd Qu	350.000
Max	99999.000

Observation Model

observational_model	Study_Count
Cohort	55
Case-Only	31
Other	8
Case-Control	7
NA	5
Case Control	4
Ecologic or Community	1
Family-Based	1

Time Perspective

time_perspective	Study_Count
Prospective	62
Retrospective	36
Cross-Sectional	7
NA	4
Other	3

Registries

Studies by Country

Country	Study_Count
United States	3
Germany	2
Brazil	1

Sites per Study

Site_count	Study_Count
1	3
6	1
7	1
34	1

Number of Updates

Count of Versions	Count of Studies
1	1
2	1
3	1
4	1
6	1
11	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	21	5	4.200000
Contacts/Locations	8	4	2.000000
None (earliest Version on record)	6	6	1.000000
Eligibility	4	3	1.333333
Study Design	4	3	1.333333
Recruitment Status	3	3	1.000000
Study Identification	3	2	1.500000
Outcome Measures	2	2	1.000000
Oversight	2	2	1.000000
Groups	1	1	1.000000
Interventions	1	1	1.000000
Study Description	1	1	1.000000

Enrollment Metrics

Measure	Registries
Min	100.000
1st Qu	234.250
Median	773.500
Mean	1546.167
3rd Qu	1750.000
Max	5500.000

Registry Model

observational_model	Study_Count
Other	3
Cohort	2
Case-Only	1

Time Perspective

time_perspective	Study_Count
Prospective	5
Other	1

Follow-up

target_duration	Study_Count
1 Year	3
5 Years	2
10 Years	1

intervention_type	Study_Count
Drug	745
Drug\|Other	103
Biological	85
Biological\|Drug	51
Drug\|Procedure	36
Drug\|placebo	29
Biological\|Drug\|Other	28
Drug\|Procedure\|Radiation	23
Other	23
Drug\|Other\|Procedure\|Radiation	17
Biological\|Drug\|Other\|Procedure\|Radiation	15
Biological\|Drug\|Procedure\|Radiation	14
Drug\|Other\|Procedure	13
Procedure	13
Biological\|Other	11
Biological\|Drug\|Procedure	9
Biological\|Drug\|Other\|Procedure	8
Biological\|Drug\|Radiation	6
Behavioral	5
Device	5
Device\|Drug\|Procedure	5
Combination Product	4
Device\|Drug	4
Other\|Procedure	4
Behavioral\|Other	3
Biological\|Device\|Drug	3
Drug\|Genetic\|Other	3
Biological\|Other\|Procedure	2
Drug\|Genetic\|Other\|Procedure	2
Drug\|placebo\|Procedure	2
Drug\|Radiation	2
Genetic	2
Behavioral\|Drug	1
Behavioral\|Other\|Procedure	1
Biological\|Combination Product	1
Biological\|Combination Product\|Drug	1
Biological\|Device	1
Biological\|Device\|Drug\|Procedure\|Radiation	1
Biological\|Device\|Drug\|Radiation	1
Biological\|Drug\|Genetic\|Other\|Procedure	1
Biological\|Drug\|placebo	1
Biological\|Genetic\|Other\|Procedure	1
Biological\|placebo	1
Biological\|Procedure	1
Device\|Drug\|Other\|Procedure\|Radiation	1
Device\|Drug\|Procedure\|Radiation	1
Dietary Supplement\|Drug	1
Drug\|Genetic	1
Drug\|Genetic\|Other\|Procedure\|Radiation	1
Drug\|Genetic\|Procedure\|Radiation	1
Drug\|Other\|placebo\|Procedure	1
Drug\|Other\|Radiation	1

Country	Study_Count
United States	761
China	54
France	45
Germany	36
United States\|Canada	28
NA	26
Spain	20
Japan	18
Canada	17
United Kingdom	16
Italy	15
Korea, Republic of	10
United States\|Australia\|Canada	9
Austria\|Germany	8
United States\|France	8
Australia	5
Israel	5
United States\|Israel	5
Belgium	4
Netherlands	4
Norway	4
Russian Federation	4
United States\|Germany	4
United States\|Germany\|Italy	4
United States\|Italy	4
Brazil	3
Hong Kong	3
United States\|Korea, Republic of	3
Denmark	2
Germany\|Netherlands	2
Iran, Islamic Republic of	2
Japan\|Korea, Republic of\|Taiwan	2
Poland	2
United States\|Australia	2
United States\|Australia\|Canada\|Netherlands\|New Zealand\|Puerto Rico\|Switzerland	2
United States\|Germany\|Spain	2
United States\|Puerto Rico	2
United States\|Spain	2
Argentina\|Belgium\|Canada\|Denmark\|Finland\|France\|Italy\|Netherlands\|Norway\|Sweden	1
Australia\|Brazil\|France\|Israel\|Italy\|Russian Federation\|Spain\|Switzerland\|Turkey	1
Australia\|Canada\|Estonia\|Finland\|Germany\|Greece\|New Zealand\|Norway\|Sweden	1
Australia\|France	1
Australia\|France\|Spain\|United Kingdom	1
Australia\|United States\|Austria\|Belgium\|Bulgaria\|Canada\|Czechia\|Denmark\|Finland\|France\|Germany\|Hungary\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Poland\|Romania\|Russian Federation\|Serbia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
Australia\|United States\|Canada\|Germany\|Israel\|Italy\|New Zealand\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Ukraine	1
Austria\|Belgium\|Canada\|France\|Germany\|Italy\|Norway	1
Austria\|Belgium\|Croatia\|France\|Germany\|Italy\|Netherlands	1
Austria\|Belgium\|Croatia\|France\|Italy\|Netherlands	1
Austria\|Canada\|Finland\|Norway\|Russian Federation\|Sweden	1
Austria\|Czechia\|Germany	1
Austria\|Czechia\|Germany\|Italy\|Poland\|United Kingdom	1
Austria\|Finland\|Germany\|Russian Federation	1
Belarus	1
Belgium\|Bulgaria\|Croatia\|France\|Germany\|Italy\|Lithuania\|Netherlands\|Portugal	1
Belgium\|Denmark\|Estonia\|Finland\|Hong Kong\|Iceland\|Netherlands\|Norway\|Sweden	1
Belgium\|France\|Germany\|Italy\|Spain	1
Belgium\|Germany\|United Kingdom	1
Belgium\|Netherlands	1
Belgium\|Switzerland	1
Bulgaria\|Croatia\|Czechia\|Estonia\|Finland\|France\|Greece\|Hungary\|Italy\|Lithuania\|Norway\|Romania\|Serbia\|Slovakia\|Spain\|Sweden	1
China\|Malaysia\|Russian Federation\|Singapore\|Thailand	1
Czechia\|United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Croatia\|France\|Germany\|Hong Kong\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Poland\|Portugal\|Romania\|Russian Federation\|Serbia\|Singapore\|Spain\|Taiwan\|Ukraine\|United Kingdom	1
Denmark\|Germany\|Netherlands	1
Denmark\|United Kingdom	1
Egypt	1
Finland	1
Finland\|Germany\|Netherlands\|Norway\|Sweden	1
France\|Germany	1
France\|Germany\|Italy	1
France\|Germany\|United Kingdom	1
France\|Switzerland	1
France\|United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Czechia\|Finland\|Germany\|Ireland\|Israel\|Italy\|Korea, Republic of\|Lithuania\|Mexico\|Poland\|Portugal\|Russian Federation\|Spain\|Taiwan\|Turkey\|United Kingdom	1
Germany\|Austria	1
Germany\|Netherlands\|United Kingdom	1
Germany\|Switzerland	1
Hong Kong\|Japan\|Korea, Republic of\|Russian Federation\|Taiwan\|Thailand\|Vietnam	1
Ireland\|Italy\|United Kingdom	1
Israel\|Italy	1
Italy\|Japan\|United States\|Australia\|France\|Greece	1
Italy\|Saudi Arabia\|United Kingdom	1
Italy\|United Kingdom	1
Japan\|Korea, Republic of	1
Portugal\|Germany\|United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Bulgaria\|Czechia\|France\|Israel\|Italy\|Japan\|Norway\|Poland\|Spain\|Switzerland\|Taiwan\|Turkey	1
Portugal\|Spain	1
Singapore	1
Spain\|United States\|Australia	1
Sweden	1
Switzerland	1
Thailand	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Greece\|Hungary\|Ireland\|Japan\|Korea, Republic of\|Mexico\|New Zealand\|Norway\|Puerto Rico\|Russian Federation\|South Africa\|Spain\|Taiwan\|United Kingdom	1
United States\|Argentina\|Austria\|Belgium\|Brazil\|Canada\|Czechia\|Finland\|France\|Germany\|Greece\|Hungary\|India\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Norway\|Poland\|Portugal\|Russian Federation\|South Africa\|Spain\|Taiwan	1
United States\|Argentina\|Belgium\|Brazil\|Canada\|Czechia\|Germany\|Greece\|Hong Kong\|Hungary\|Ireland\|Israel\|Italy\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Puerto Rico\|Russian Federation\|Spain\|Taiwan\|Thailand	1
United States\|Argentina\|Korea, Republic of\|Australia\|Austria\|Brazil\|Czechia\|France\|Germany\|Hungary\|Italy\|Poland\|Romania\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Czechia\|Denmark\|France\|Germany\|Italy\|Korea, Republic of\|Russian Federation\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|China\|Czechia\|France\|Germany\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Russian Federation\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|New Zealand\|Poland\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|France\|Germany\|Korea, Republic of\|Poland\|Spain	1
United States\|Australia\|Austria\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Spain\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Russian Federation\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Greece\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Poland\|Russian Federation\|Spain\|Turkey\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|Croatia\|Czechia\|France\|Germany\|Hong Kong\|Hungary\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Serbia\|Singapore\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|Denmark\|France\|Germany\|Greece\|Italy\|Japan\|Korea, Republic of\|New Zealand\|Poland\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Ireland\|Italy\|Norway\|Poland\|Romania\|Spain\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Poland\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|France\|Germany\|Israel\|Korea, Republic of\|Poland\|Russian Federation\|Spain\|Sweden\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Belgium\|France\|Germany\|Italy\|Korea, Republic of\|Peru\|Spain\|Switzerland\|Turkey\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Greece\|Hungary\|Italy\|Japan\|Korea, Republic of\|Puerto Rico\|Russian Federation\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Russian Federation\|Spain\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Australia\|Canada\|Croatia\|Czechia\|France\|Hungary\|Mexico\|Poland\|Romania\|Russian Federation\|Serbia\|Spain\|Taiwan\|United Kingdom	1
United States\|Australia\|Canada\|Denmark\|Estonia\|Finland\|France\|Germany\|Israel\|New Zealand\|Sweden\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Italy\|Korea, Republic of\|Netherlands\|Portugal\|Spain\|Switzerland\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Italy\|Korea, Republic of\|Spain\|United Kingdom	1
United States\|Australia\|Canada\|France\|Germany\|Netherlands\|Switzerland\|United Kingdom	1
United States\|Australia\|Canada\|France\|Italy\|Korea, Republic of\|United Kingdom	1
United States\|Australia\|Canada\|Germany\|Japan	1
United States\|Australia\|Canada\|Ireland\|Italy\|Netherlands\|Spain	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico\|Saudi Arabia	1
United States\|Australia\|Canada\|New Zealand\|Puerto Rico\|Switzerland	1
United States\|Australia\|Canada\|Puerto Rico\|Switzerland	1
United States\|Australia\|Finland\|France\|Germany\|Netherlands\|Spain\|United Kingdom	1
United States\|Australia\|Finland\|Italy\|Singapore\|Spain\|Switzerland	1
United States\|Australia\|France	1
United States\|Australia\|France\|Germany	1
United States\|Australia\|France\|Germany\|Italy\|Japan\|Netherlands	1
United States\|Australia\|France\|Germany\|Italy\|Japan\|Romania\|Spain\|United Kingdom	1
United States\|Australia\|France\|Italy\|Spain	1
United States\|Australia\|France\|Poland	1
United States\|Australia\|France\|Spain	1
United States\|Australia\|Germany	1
United States\|Australia\|Germany\|Italy	1
United States\|Australia\|Ireland	1
United States\|Australia\|Singapore	1
United States\|Austria\|Belgium\|Canada\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|Spain\|Sweden\|Switzerland\|Thailand\|United Kingdom	1
United States\|Austria\|Belgium\|Canada\|France\|Germany\|Italy\|Netherlands\|Poland\|Portugal\|Spain\|United Kingdom	1
United States\|Austria\|Belgium\|France\|Germany\|Hungary\|Italy\|Poland\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Belgium	1
United States\|Belgium\|Bulgaria\|Canada\|Czechia\|France\|Germany\|Ireland\|Israel\|Italy\|Netherlands\|Spain	1
United States\|Belgium\|Canada\|Denmark\|France\|Germany\|Hungary\|Italy\|Japan\|Korea, Republic of\|Poland\|Spain\|Sweden\|Ukraine\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Greece\|Netherlands\|Poland\|Serbia\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Poland\|Spain\|Taiwan\|Turkey\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|United Kingdom	1
United States\|Belgium\|Denmark\|France\|Israel\|Italy\|Netherlands\|Spain\|Sweden	1
United States\|Belgium\|France\|Italy\|Netherlands	1
United States\|Brazil\|Canada\|Czechia\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Poland\|Portugal\|Romania\|Serbia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Brazil\|Denmark\|France\|Germany\|Hong Kong\|Italy\|Korea, Republic of\|Puerto Rico\|Taiwan\|United Kingdom	1
United States\|Brazil\|France\|Israel\|Italy\|Netherlands\|Portugal\|Singapore\|Spain\|United Kingdom	1
United States\|Canada\|Denmark\|France\|Germany\|Israel\|Italy\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Canada\|France	1
United States\|Canada\|France\|Germany\|Italy	1
United States\|Canada\|France\|Germany\|Italy\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Canada\|France\|Germany\|Italy\|Spain	1
United States\|Canada\|France\|Italy	1
United States\|Canada\|France\|Italy\|Norway\|Spain\|United Kingdom	1
United States\|Canada\|France\|Italy\|United Kingdom	1
United States\|Canada\|France\|Netherlands\|Spain\|United Kingdom	1
United States\|Canada\|France\|Poland	1
United States\|Canada\|France\|Spain	1
United States\|Canada\|Germany\|Italy\|Poland\|Spain	1
United States\|Canada\|Germany\|Poland\|Switzerland	1
United States\|Canada\|Netherlands	1
United States\|Canada\|New Zealand	1
United States\|Canada\|Puerto Rico	1
United States\|Denmark	1
United States\|Denmark\|Germany	1
United States\|France\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Croatia\|Czechia\|Denmark\|Finland\|Germany\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Norway\|Poland\|Portugal\|Puerto Rico\|Russian Federation\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine	1
United States\|France\|Germany	1
United States\|France\|Germany\|Italy\|Switzerland\|United Kingdom	1
United States\|France\|Germany\|Italy\|United Kingdom	1
United States\|France\|Germany\|Norway	1
United States\|France\|Germany\|Spain	1
United States\|France\|Israel\|Japan\|United Kingdom	1
United States\|France\|Italy\|Netherlands	1
United States\|France\|Italy\|Spain	1
United States\|France\|Italy\|United Kingdom	1
United States\|France\|Korea, Republic of	1
United States\|France\|United Kingdom	1
United States\|Georgia	1
United States\|Germany\|Italy\|Spain	1
United States\|Germany\|Netherlands	1
United States\|Germany\|United Kingdom	1
United States\|India\|Israel	1
United States\|Israel\|Peru	1
United States\|Italy\|Netherlands\|Singapore\|Spain	1
United States\|New Zealand	1
United States\|Puerto Rico\|South Africa	1
United States\|Singapore	1
United States\|Spain\|United Kingdom	1
United States\|Switzerland	1
United States\|United Kingdom	1

Site_count	Study_Count
1	659
2	86
3	63
4	34
5	46
6	35
7	23
8	23
9	27
10	22
11	23
12	12
13	14
14	9
15	11
16	7
17	11
18	6
19	8
20	8
21	13
22	7
23	3
24	9
25	3
26	5
27	7
28	1
29	3
30	1
32	4
33	3
34	2
35	1
37	1
38	4
40	3
42	1
43	3
44	1
45	2
46	2
47	1
49	1
50	3
52	2
53	2
54	3
55	2
57	1
59	1
60	1
61	3
62	3
65	4
66	2
73	2
76	1
78	2
81	3
82	1
84	1
85	2
87	1
88	1
90	1
92	1
95	1
96	1
97	1
98	1
99	1
108	1
109	1
112	1
118	2
120	1
122	1
124	1
127	1
128	1
131	1
132	1
135	1
139	1
144	1
148	1
149	1
151	1
153	1
169	1
171	1
172	1
176	1
177	1
178	1
179	1
185	1
198	1
201	1
220	2
225	1
234	1
235	1
242	1
244	1
269	1
341	1
447	1

Count of Versions	Count of Studies
1	48
2	56
3	64
4	82
5	71
6	62
7	62
8	61
9	59
10	45
11	38
12	55
13	58
14	45
15	41
16	27
17	26
18	33
19	23
20	26
21	19
22	17
23	11
24	18
25	17
26	19
27	10
28	10
29	10
30	13
31	8
32	10
33	8
34	5
35	4
36	4
37	7
38	6
39	4
40	8
41	3
42	3
43	1
44	6
45	4
46	4
47	2
48	2
49	1
50	2
51	4
52	3
53	2
54	1
55	1
59	2
60	1
61	1
62	4
63	1
65	3
66	1
67	3
68	1
70	1
71	3
72	1
73	1
75	1
77	2
78	1
81	2
82	1
83	1
84	2
85	1
86	1
89	1
92	1
93	1
94	2
97	1
98	1
101	1
103	1
106	1
109	2
116	1
118	1
127	2
129	2
133	1
139	1
157	1
162	1
170	1
223	1
232	1
284	1
320	1
347	1
439	1
444	1
556	1

Site_count	Study_Count
1	79
2	7
3	2
7	3
8	1
12	1
14	1
15	1
17	1
19	1
20	1
32	1
38	1
39	1
40	1
42	1
46	3
66	1
70	1
77	1
144	1
192	1
225	1

Count of Versions	Count of Studies
1	18
2	13
3	13
4	16
5	12
6	4
7	5
8	2
9	3
10	1
11	1
12	3
13	4
14	1
15	1
16	1
17	1
20	1
21	1
24	1
33	1
38	1
62	1
63	1
64	1
84	1
112	1
122	1
165	1
224	1

Site_count	Study_Count
1	659
2	86
3	63
4	34
5	46
6	35
7	23
8	23
9	27
10	22
11	23
12	12
13	14
14	9
15	11
16	7
17	11
18	6
19	8
20	8
21	13
22	7
23	3
24	9
25	3
26	5
27	7
28	1
29	3
30	1
32	4
33	3
34	2
35	1
37	1
38	4
40	3
42	1
43	3
44	1
45	2
46	2
47	1
49	1
50	3
52	2
53	2
54	3
55	2
57	1
59	1
60	1
61	3
62	3
65	4
66	2
73	2
76	1
78	2
81	3
82	1
84	1
85	2
87	1
88	1
90	1
92	1
95	1
96	1
97	1
98	1
99	1
108	1
109	1
112	1
118	2
120	1
122	1
124	1
127	1
128	1
131	1
132	1
135	1
139	1
144	1
148	1
149	1
151	1
153	1
169	1
171	1
172	1
176	1
177	1
178	1
179	1
185	1
198	1
201	1
220	2
225	1
234	1
235	1
242	1
244	1
269	1
341	1
447	1

Count of Versions	Count of Studies
1	48
2	56
3	64
4	82
5	71
6	62
7	62
8	61
9	59
10	45
11	38
12	55
13	58
14	45
15	41
16	27
17	26
18	33
19	23
20	26
21	19
22	17
23	11
24	18
25	17
26	19
27	10
28	10
29	10
30	13
31	8
32	10
33	8
34	5
35	4
36	4
37	7
38	6
39	4
40	8
41	3
42	3
43	1
44	6
45	4
46	4
47	2
48	2
49	1
50	2
51	4
52	3
53	2
54	1
55	1
59	2
60	1
61	1
62	4
63	1
65	3
66	1
67	3
68	1
70	1
71	3
72	1
73	1
75	1
77	2
78	1
81	2
82	1
83	1
84	2
85	1
86	1
89	1
92	1
93	1
94	2
97	1
98	1
101	1
103	1
106	1
109	2
116	1
118	1
127	2
129	2
133	1
139	1
157	1
162	1
170	1
223	1
232	1
284	1
320	1
347	1
439	1
444	1
556	1

Site_count	Study_Count
1	79
2	7
3	2
7	3
8	1
12	1
14	1
15	1
17	1
19	1
20	1
32	1
38	1
39	1
40	1
42	1
46	3
66	1
70	1
77	1
144	1
192	1
225	1

Count of Versions	Count of Studies
1	18
2	13
3	13
4	16
5	12
6	4
7	5
8	2
9	3
10	1
11	1
12	3
13	4
14	1
15	1
16	1
17	1
20	1
21	1
24	1
33	1
38	1
62	1
63	1
64	1
84	1
112	1
122	1
165	1
224	1

leukemia, myeloid, acute

Study Counts

Studies over Time

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Number of Updates

Update History Change Type

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Site_count	Study_Count
1	659
2	86
3	63
4	34
5	46
6	35
7	23
8	23
9	27
10	22
11	23
12	12
13	14
14	9
15	11
16	7
17	11
18	6
19	8
20	8
21	13
22	7
23	3
24	9
25	3
26	5
27	7
28	1
29	3
30	1
32	4
33	3
34	2
35	1
37	1
38	4
40	3
42	1
43	3
44	1
45	2
46	2
47	1
49	1
50	3
52	2
53	2
54	3
55	2
57	1
59	1
60	1
61	3
62	3
65	4
66	2
73	2
76	1
78	2
81	3
82	1
84	1
85	2
87	1
88	1
90	1
92	1
95	1
96	1
97	1
98	1
99	1
108	1
109	1
112	1
118	2
120	1
122	1
124	1
127	1
128	1
131	1
132	1
135	1
139	1
144	1
148	1
149	1
151	1
153	1
169	1
171	1
172	1
176	1
177	1
178	1
179	1
185	1
198	1
201	1
220	2
225	1
234	1
235	1
242	1
244	1
269	1
341	1
447	1

Count of Versions	Count of Studies
1	48
2	56
3	64
4	82
5	71
6	62
7	62
8	61
9	59
10	45
11	38
12	55
13	58
14	45
15	41
16	27
17	26
18	33
19	23
20	26
21	19
22	17
23	11
24	18
25	17
26	19
27	10
28	10
29	10
30	13
31	8
32	10
33	8
34	5
35	4
36	4
37	7
38	6
39	4
40	8
41	3
42	3
43	1
44	6
45	4
46	4
47	2
48	2
49	1
50	2
51	4
52	3
53	2
54	1
55	1
59	2
60	1
61	1
62	4
63	1
65	3
66	1
67	3
68	1
70	1
71	3
72	1
73	1
75	1
77	2
78	1
81	2
82	1
83	1
84	2
85	1
86	1
89	1
92	1
93	1
94	2
97	1
98	1
101	1
103	1
106	1
109	2
116	1
118	1
127	2
129	2
133	1
139	1
157	1
162	1
170	1
223	1
232	1
284	1
320	1
347	1
439	1
444	1
556	1

Site_count	Study_Count
1	79
2	7
3	2
7	3
8	1
12	1
14	1
15	1
17	1
19	1
20	1
32	1
38	1
39	1
40	1
42	1
46	3
66	1
70	1
77	1
144	1
192	1
225	1

Count of Versions	Count of Studies
1	18
2	13
3	13
4	16
5	12
6	4
7	5
8	2
9	3
10	1
11	1
12	3
13	4
14	1
15	1
16	1
17	1
20	1
21	1
24	1
33	1
38	1
62	1
63	1
64	1
84	1
112	1
122	1
165	1
224	1